The Use of Antimicrobials for Infection Prophylaxis

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There are some instances where the use of prophylactic antibiotics is well established. However, this often consumes a disproportionate amount of all antibiotics used in the hospital setting and consideration to their appropriate use must be given. Prophylactic antibiotic use must be within accepted principles and guidelines. 

General Recommendations:

  • use the appropriate medicine (see below)
  • give as a single dose where possible
  • repeat when the procedure lasts longer than 3-4 hours
  • give intravenously 10-15 minutes before the incision, or orally 1-2 hours before the incision. 

Specific indications:

Surgical prophylaxis 

NB: There is need for the recommendations to be guided by sensitivity patterns. It is important to establish a Healthcare Associated INfection Surveillance system for monitoring of sensitivity or resistance patterns. 

Vaginal operations

Medicine

Adult Dose

Frequency

chloramphenicol iv

1g

single dose

Caesarean section

Medicine

Adult Dose

Frequency

ceftriaxone iv

1g

one dose only

Hysterectomy, or Colorectal surgery e.g. appendicectomy

 

Medicine

Dose

Frequency

 

ceftriaxone iv

1g

single dose

and

gentamicin iv

4-5mg/kg

single dose

If signs of infection after operation, give:

 

Medicine

Dose

Frequency

Duration

 

amoxicillin po

500mg

3 times a day

7 days

and

metronidazole

400mg

3 times a day

7 days

Subacute bacterial endocarditis

For meningococcal meningitis contacts

Give as soon as diagnosis is made in the index case: 

Medicine

Adult Dose

Frequency

ceftriaxone im

250mg

single dose